Developing-machine.



C. K; NESHIME & S. L ROGNLIE.

' DEVELOPING MACHINE.

APPLICATION FILED NOV. 1, I913.

Patented Apr. 20, 1915.

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ATTORNEYS C. K. NESHIME' & S. J. ROGNLIE.

DEVELOPING MACHINE.

APPLICATION FILED NOVA, 1913.

Patented Apr. 20, 1915.

2 SHEETS-SHEETB.

UNITED STATES PATENT OFFICE.

CARL K. NESHIME AND SEVERIN J. ROGNLIE, OF MINOT, NORTH DAKOTA.

DEVELOPING-MACHINE.

Specificationof Letters Patent.

Patented Apr. 20, 1915.

Application filed November 1, 1913. Serial No. 798,671.

To all whom'it may concern:

Be it known that'we, CARL K. NEs'HIME and SEVERIN J. RoGNLm, citizens ofthe United States, and residents of Minot, in the county of Ward andState of North Dakota, have made certain new and useful Improvements inDelevoping-Machines, of which the following is a specification. 7

Our invention relates to improvements in machines for developing.photographic films, and it consists in the combinations, contructions,and arrangements herein' described and claimed.

An object of our invention is to provide a device by means of which afilm may be developed, rinsed and fixed without the necessity oftouching the film with the hand. A further object of our invention is toprovide a device in which a longer film may be placed in the machine msuch a manner as to insure no part of the sensltlve surface of the filmcoming in contact with any part of the apparatus. I v 1 Other objectsand advantages Wlll. appear in the following specification and the'novelfeatures of the device will be particularly pointed oiit in the appendedclaims.

Our invention is illustrated in the accompanying drawing forming part ofthis applicatlon in wh1ch Figure 1 is a perspective view of the device,Fig. 2 is a plan view of the device with the cover and handle removed,Fig. 3 is a section through a portion of the central shaft, Fig. 4 is adetail view of the operating handle, Fig. 5 is a section along the line5-5 of Fig. 3, Fig. 6 is a bottom view of the cover, and Fig. 7 is asectional View showing the manner of rotatably mounting the casing. 7

In carrying out our inventlon we prov de an outer receptacle 1 ofsubstantially cylindrical shape except that it has an extension 1* onone side thereof. This outer casing is provided with a centralpin 2 (seeFig. 5) projecting upwardly from the bottom. In the bottom of theextension is an upwardly projecting pin 3, which is designed to receivethe spool which forms the holder for the film. The casing 1- is providedwith hinged. locking members 4.- near the upper edge thereof arranged toengage the cover 5, as shown in Fig. 5.

Disposed on the inside of the casing'l is a cylinder 6. This cylinder isprovided .with

an upwardly extending post 7 ,which is hol-' bottom of the cylinder 6and low so as to fit over the pin, 2, as shown in Fig. 5. On one side ofthe cylinder 6 is a cut-away portion 6 (see Fig. 3) and at one endofthis cut-away portion is an outwardly projecting lug or stop member 6*which is arranged to engage a pin or lug 1 carried by the bottom of thecasing 1. The latter is also provided with a springarm 1 under which thelug 6 may pass.

On the inside of the cylinder 6 is a cylinder 8 which has an opening orcut-away portion 8, similar to the cut-away portion 6". It is providedwith a lu 8 arranged to engage a stop member or ug 6' on the it also'isdesigned to enter underneath an arm 6" on the bottom of the cylinder 6similar to the arm 1 already described. The cylinder 8 is provided withan opening arranged to receive the post or central sleeve 7 which isattached to the cylinder. 6. A third cylinder 9 is provided with an oening also arranged to fit over the post 7 and has a cut-away portion 9"and an arm9 arranged to engage a lug or stop member 8 A fourth cylinder10 is provided with a sleeve 11 arranged to fit over the post 7; The.sleeve 11 is extended so as to provide a spacing member 11, thus raisingthe inner cylinder from the bottom of the cylinder 9. The sides of theinner cy inder 10 are also extended, as shown in Fig. 5, to space thetwo cylinders 9 and 10 apart. The cylinder 10 is provided on its bottomwith a stop lug 10 arranged toengage a stop member 9 on the bottom ofthe. cylinder 9.

The sleeve 11 is provided withan opening 11 (see Fig. 3) arranged torecelve a spring locking member 12. This locking member is secured to asleeve 13 slidably mounted on the sleeve 11. An upper sleeve 14: isprovided contiguous to the locking member 12. It is made so that it maybe pressed inwardly toward the sleeve 11, thereby push ing the lockingmember outwardly. The. locking member 12 is arranged to enter aperipheral groove 7 in the member 7.

The cover 5 is provided with an opening 5 which is covered by a screwcap 15, this opening beingin position to permit the introduction offluid into the interior of theinner cylinder. A downwardly extendingguide member 5 is secured to the cover and is arranged to'enter theinner cylinder, as shown. Asecond opening is provided in the triangularextension 1 and this opening is covered by a screw cap 17. @n the innerside of the cover is secured a sprinfg plate 18 which'serves the doublepurpose 0 carrying a pivot pin 19; for the film s o ol and alsoexcluding light when the cap 1 is removed since it will be seen in Fig.6 the member 18 fitscloselyinto the'space between the converging sidesof the extension 1.

One end of the sleeve 11 is slotted to receive the ends of ahandle 20.The latter is preferably formed as shown in Fig. 4, and consists of awire bent at its center back uponjitself, the ends of the wires beingreduced to enter the opening in the sleeve 11, being held there byspring tension. A knob 21 is provided for the handle.

From the foregoing description of the various parts of thedevice theoperation thereof may be readily understood. Whena long film of tenortwelve exposures is tobe developed the device is set up as shown inFig. 2. In this figur 6"-,z;8',-.9" are on the left of the stopmembers-1 6? and 8", while the stop member 1.

is on the left of the stop member 9*. v The coveris removed from thedevice and'the spool containing the film is placed on the bottom pivotmember 3. The film is then passed through the cut-away portions 6, 8 and9 and is secured underneath the spring fastening member such as thatshown at 22 on the'inner cylinder 10. The cover 5 is now replaced, thespring pin 19 entering the opening in one end of thespool (not shown).The handle is inserted, the cap 15 withdrawn, and developer is poured inthrough the opening, after which the cap is replaced. Owing to thearrangement of the device only a small amount of developer need be used,thus for ten or twelve exposures only about four ounces of ordinarydeveloper is required. The-handleis now rotated in a clockwisedirection. As will be seen from Fig. 2'the inner cylinder 10 willcommence to revolve, thus drawing the film from the real, the othercylinder remaining stationary. When the 1 inner cylinder has made onerevolution the lug 10 will now be on the opposite side-of the'lug 9and'iwill engage the latter lug, thereby rotating the cylinder 9. Thefilm will then be wound on the cylinder 9 and it will make onerevolution until the lug 9" comes on the opposite side of the lug 8 rwhen the engagement of these two lugs W111 cause the rotation of thecylinder 8. The

film will now be wound on-the cylinder 8' and it in turn will cause theengagement of the cylinder 6 until the film has been wound oif' thereel. By these means a con siderable length of film may be wound in sucha manner that the sensitive side will' have nothing against it, therebypreventing.-

scratches on the sensitive surface. The device isnow placed on a standsuch as that e it will be observed that the arms om that shown in Fig. 2

attains shown at 23 in Fig. lhaVing its upper edges recessed to receivethe sleeve 11 on one side and-being provided with a pin arranged toenter the member 2 on. the other side (see Fig.5). The rotation iscontinued. This insures an even flow of developer on all parts of thefilm, and consequently an even development of the film. The developer isdrained out of the extension '1", the screw cap 17 being removed for thepurpose. It maythen be rinsed, and after rinsing a small quantityoffixer such as sodium hyposulhte may be introduced by removin screwcap. 15. This small amount of ing solution is suficient to arrestdevelopment. The device may be taken from the su port 23, the cover'removed, and a suflibient amount of the fixing solution may be poured inthe space between the cylinders to cover the film. The tank may now beleft flat on i the tablemntil the fixing solution has had time to act. I

In removing the film from the machine the spool is removed with the lefthand. By grasping the sleeve 11 the cylinders may be all removed whenthe locking member 12 is in the position shown in Fig. 3; With one handholding the sleeve 11 steady the other may withdraw the film by pullingon it, the cylinders revolving and permitting the unwinding of the filmin a manner just the reverse of that when winding the film, that is tosay, the outer cylinder will make one revolution and then stop, the nextcylinder will make one revolution and then stop, and so on until thefilm is-finally released.

'-If itis desired to use a slow developer the film maybe wound on in themanner described and a sufficient amountof developer to cover the filmpoured in when the appa 9- willstart to turn immediately, thus the filmwill be wound onthe cylinder 9 without being wound on the innercylinder. If a still shorter film is designed to bevdeveloped the. innercylinder 10 and the outer cylinder 9 may each 'be given a revolutionwhen the film will be wound on the cylinder 8. Thus lfzilifnmachine maybe used for any length of It will be seen that we have provided a devicein. which a long film may be developed without any danger of injuringthe sensitive surface of the film by contact with any parts of theapparatus.

the

The apparatus is easily assembled or taken apart, since by pressing onthe sleeve 14 the sleeve 11 will be unlocked from the post 7 thuspermitting the inner cylinder to be removed. The other cylinders may beimmediately lifted out successively.

We claim: 1

1. In a developing machine, an outer casing provided with a centralpivot post, a cylinder disposed within said casing and provided with asleeve arranged to fit over said central pivot post, a pair ofconcentric cylinders having openings arranged to fit over said sleeve,an inner cylinder having a central sleeve arranged to fit over saidfirst named sleeve, and means carried by said second named sleeve forsecuring it against longitudinal movement with respect to the firstnamed sleeve.-

2. In a developing machine, an outer casing provided with a centralpivot post, a-

cylinder disposed within said casing and provided with a sleeve arrangedto fit over said central pivot post, said sleeve having a peripheralgroove, a pair of concentric cylinders having openings arranged to fitover said sleeve, an inner cylinder having a central sleevearranged tofit J over said first named sleeve, and means carried by said secondnamed sleevefor securing itagainst longitudinal movement with respect tothe first named sleeve, said last named meanscomprising a springpressedarm slidably secured to said last namedsleeve and adapted to extendthrough said last named sleeve into the peripheral groove of said firstnamed sleeve.

3. In a developing machine, a casing provided with a pivot pin on itsbottom, a cover r for said casing, a spring plate carried by said coverand provided with a pivot pin in alinement with said first named pivotpin, said cover being provided with an opening in registration with saidspring plate, and means for closing said opening.

4. In a developing machine, an outer casnamed sleeve, a cover having anopening ar-' ranged to admit said second named sleeve, and a handlecarried by sald second named sleeve exteriorly of said cover.

CARL K. NESHIME. SEVERIN J. ROGNLIE.

Witnesses:

ROBERT S. GILLESPIE, GRANT D. SHOFT.

